For most of the agroforestry systems the net costs are low, especially in the south, the southwest, and the north of China, though their initial investments are high.

• 大多数农用林生态系统虽然它们的初始成本很高，但由于收益很高，所以净成本是比较低的，特别是在南方区、西南区，在华北也比较低。